CN102014041B - PTN (Packet Transport Network) equipment and CES (Circuit Emulation Service) equipment - Google Patents
PTN (Packet Transport Network) equipment and CES (Circuit Emulation Service) equipment Download PDFInfo
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- CN102014041B CN102014041B CN200910168989.6A CN200910168989A CN102014041B CN 102014041 B CN102014041 B CN 102014041B CN 200910168989 A CN200910168989 A CN 200910168989A CN 102014041 B CN102014041 B CN 102014041B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/50—Routing or path finding of packets in data switching networks using label swapping, e.g. multi-protocol label switch [MPLS]
Abstract
The invention provides PTN (Packet Transport Network) equipment and CES (Circuit Emulation Service) equipment. The PTN equipment comprises a negotiation module and an encapsulating module, wherein the negotiation module is used for negotiating an inner pseudo-wire label and a tunnel label and sending the inner pseudo-wire label to the CES equipment, and the encapsulating module is used for encapsulating the tunnel label, a source MAC (Medium Access Control) address and a destination MAC address in an MPLS (Multi Protocol Label Switching) encapsulating format for an Ethernet message received from the CES equipment according to an outer VLAN (Virtual Local Area Network) label in the Ethernet message, sending the encapsulated Ethernet message to the network, stripping the tunnel label, the source MAC address and the destination MAC address from the Ethernet message received from the network, encapsulating the outer VLAN label in the Ethernet message according to the tunnel label and sending the Ethernet message to the CES equipment. The invention can realize the end-to-end circuit simulation service.
Description
Technical field
The present invention relates to the technology of the end to end circuit artificial service of optical access network in mechanics of communication, particularly realize grouping conveying network equipment and the circuit emulation service equipment of end to end circuit artificial service.
Background technology
Along with the substitution effect of mobile communication to fixed network operation is deepened further, broadband services becomes the new profit growth point of fixed network operator and strategic investment emphasis gradually, also becomes another focus of the competition except mobile communication business.Along with wide band access user number continues to keep increasing fast, IPTV (Internet ProtocolTelevision, IPTV), VOD (Video On Demand, video request program), the emerging service such as online game and multimedia interaction testing existing bandwidth, the DSL access way based on copper cable meets with development bottleneck.Therefore, operator is all in acceleration FTTx networking, and EPON (EthernetPassive Optical Network, Ethernet passive optical network) becomes present stage main flow soft exchange means.
Along with the Large scale construction of FTTx network, the coverage of EPON is increasingly extensive.The mobile base station of the types such as micro-base station, PICO base station and micromicro honeycomb base station (Femtocell) is often applied to the in-door covering of Tall Office Building and resident's high building, and the coverage of this type of base station has overlapping part with the application scenarios of FTTB/FTTCab.Therefore, in the region such as building, residential quarters, hotel having data service development potentiality, utilize FTTx broadband access resource bearing base station, the problem of access transport resource shortage can be solved, have and save the advantages such as fiber resource, deployment is flexible, extensibility is good.
Traditional base station major part is the TDM/ATM base station with E1, T1 interface.ONU (the Optical Network Unit of EPON, optical network unit) side employing PWE3 (Pseudo-Wire Edge-to-EdgeEmulation, pseudo-line edge-to-edge emulation), the base station of the simulation technology access E1/T1 Interface such as MEF8 (Implementation Agreement for theEmulation of PDH Circuits over Metro Ethernet Networks, PDH circuit emulated execution agreement on metro ethernet network).Along with the transformation of metropolitan area network IPization, only have and realize circuit emulation service (Circuit Emulation Service, CES) end to end and just meet operator's needs.
Fig. 1 is the existing topological diagram realizing the network of edge-to-edge circuit emulation service.As shown in Figure 1, conventional CES equipment is all symmetrical placement, namely at PSN (Package Switch Network, the packet switching network) base station side need configuration circuit artificial service equipment (ONU) and PE (Provider Edge, provider edge), also configuration circuit artificial service equipment (CES-CE) and provider edge (PE2) is symmetrically needed in RNC (Radio Network Controller, the radio network controller) side of PSN.Owing to can not place an equipment specialize CES in RNC side, therefore OLT (OpticalLine Terminal, optical line terminal) must direct and PTN (Package Transport Network, Packet Transport Network) equipment interconnection.Meanwhile, two equipment must be placed in RNC side, have both increased cost and have turn increased fault point.
Summary of the invention
The object of this invention is to provide a kind of grouping conveying network equipment and circuit emulation service equipment, to realize circuit emulation service end to end.
To achieve these goals, embodiments providing a kind of grouping conveying network equipment, comprising: negotiation module, for consulting internal layer pseudo line tag and tunnel label, and internal layer pseudo line tag being sent to circuit emulation service equipment; And, package module, for basis from the outside VLAN label the Ethernet message that circuit emulation service equipment receives, network is sent to after Ethernet message encapsulation tunnel label, source MAC and target MAC (Media Access Control) address with MPLS encapsulation format, and, by from network reception to Ethernet message peel off tunnel label, source MAC and target MAC (Media Access Control) address, and be sent to circuit emulation service equipment after encapsulating outside VLAN label according to tunnel label in Ethernet message.
According to an aspect of this embodiment, internal layer pseudo line tag is sent to circuit emulation service equipment by the OAM message of expansion by negotiation module.
According to the another aspect of this embodiment, package module, after peeling off the VLAN label in Ethernet message, is sent to network with MPLS encapsulation format to after Ethernet message encapsulation tunnel label, source MAC and target MAC (Media Access Control) address according to outside VLAN label.
To achieve these goals, the embodiment of the present invention additionally provides a kind of circuit emulation service equipment, comprise circuit emulation service module and Switching Module, wherein: circuit emulation service module, for carrying out MPLS encapsulation according to the internal layer pseudo line tag from grouping conveying network equipment, be send to Switching Module after Ethernet message by TDM/ATM data encapsulation, and be encapsulated as TDM/ATM data after the Ethernet message of self-exchange module peels off internal layer pseudo line tag in the future; And, Switching Module is used for being sent to grouping conveying network equipment after from the Ethernet message encapsulation outside VLAN label of circuit emulation service module, and is sent to circuit emulation service module by after the Ethernet message peeling outer layer VLAN label received from grouping conveying network equipment.
According to an aspect of this embodiment, when the Ethernet message received from Switching Module carries inner VLAN label, circuit emulation service module peels off inner VLAN label further.
To achieve these goals, the embodiment of the present invention additionally provides a kind of grouping conveying network equipment, comprising: negotiation module, for consulting internal layer pseudo line tag and tunnel label, and internal layer pseudo line tag, tunnel label, source MAC and target MAC (Media Access Control) address being sent to circuit emulation service equipment; And, package module, for the Ethernet received from circuit emulation service equipment message is sent to PSN network, and, the Ethernet message received from network side is sent to circuit emulation service equipment.
According to an aspect of this embodiment, internal layer pseudo line tag, source MAC and target MAC (Media Access Control) address are sent to circuit emulation service equipment by the OAM message of expansion by negotiation module.
According to the another aspect of this embodiment, Ethernet message, after peeling off the VLAN label in Ethernet message, is sent to network by package module.
To achieve these goals, the embodiment of the present invention additionally provides a kind of circuit emulation service equipment, comprise circuit emulation service module and Switching Module, wherein: circuit emulation service module, for the internal layer pseudo line tag of basis from grouping conveying network equipment, tunnel label, source MAC and target MAC (Media Access Control) address carry out MPLS encapsulation, be send to Switching Module after Ethernet message by TDM/ATM data encapsulation, and the network packet in addition of self-exchange module peels off internal layer pseudo line tag in the future, tunnel label, TDM/ATM data are encapsulated as after source MAC and target MAC (Media Access Control) address, and, Switching Module, for being sent to grouping conveying network equipment by from after the Ethernet message encapsulation outside VLAN label of circuit emulation service module, and be sent to circuit emulation service module by after the Ethernet message peeling outer layer VLAN label received from grouping conveying network equipment.
According to an aspect of this embodiment, when the Ethernet message received from Switching Module carries inner VLAN label, circuit emulation service module peels off inner VLAN label further.
The embodiment of the present invention has following beneficial effect:
MPLS ability can be realized on the circuit emulation service equipment (ONU, CES-CE) not supporting LDP agreement, support dynamic labels distribution mechanisms, support LDP distribution mechanisms, thus, in a limited number of situation of LDP protocol end, expand MPLS ability to edge, that is, realize the end to end circuit artificial service from base station to RNC.Further, the grouping conveying network equipment (PE2) of RNC side and circuit emulation service equipment (CES-CE) can be realized in same equipment, to reduce cost and fault origination point.
Accompanying drawing explanation
Fig. 1 is the existing topological diagram realizing the network of the circuit emulation service of edge-to-edge;
Fig. 2 is the topological diagram according to the realization of the present invention network of circuit emulation service end to end;
Fig. 3 is the structural representation of the OLT according to first embodiment of the invention;
Fig. 4 is the structural representation of the ONU according to first embodiment of the invention;
Fig. 5 is the flow chart of the realization method of upstream circuitry artificial service end to end according to first embodiment of the invention;
Fig. 6 is the flow chart of the realization method of downstream circuitry artificial service end to end according to first embodiment of the invention;
Fig. 7 is the flow chart of the realization method of upstream circuitry artificial service end to end according to second embodiment of the invention;
Fig. 8 is the flow chart of the realization method of downstream circuitry artificial service end to end according to second embodiment of the invention.
Embodiment
The present invention is described in detail below in conjunction with accompanying drawing.
Fig. 2 is according to the topological diagram realizing the network of end to end circuit artificial service of the present invention.Present invention employs the pseudo-line mechanism of segmentation, circuit emulation service equipment (ONU, CES-CE) is made not support LDP agreement (Label Distribution Protocol, tag distribution protocol) prerequisite under support MPLS (Multi-Protocol Label Switching, multiprotocol label switching) agreement, thus between base station and RNC, realize circuit emulation service end to end.Further, by realizing circuit emulation service end to end, in RNC side, circuit emulation service equipment CES-CE and PE2 (PTN device, grouping conveying network equipment) can realize in same equipment, to reduce cost and fault origination point.
first embodiment
Fig. 3 is the structural representation of the OLT (grouping conveying network equipment) according to first embodiment of the invention.This OLT comprises: negotiation module and package module.
Wherein, this negotiation module is used for such as by LDP agreement, consults internal layer pseudo line tag with outlet provider edge, consults tunnel label, and internal layer pseudo line tag is sent to ONU with provider router.Internal layer pseudo line tag such as can be sent to ONU by OAM (operate/manage/maintenance) message of expansion by this negotiation module.
This package module, according to the outside VLAN label in the Ethernet message received from ONU, is sent to PSN network with MPLS encapsulation format to after Ethernet message encapsulation tunnel label, source MAC and target MAC (Media Access Control) address.
This package module can peel off VLAN label (at least outside VLAN label in Ethernet message, when carrying inner VLAN label, may further include inner VLAN label) after, then be sent to PSN network with MPLS form to after Ethernet message encapsulation tunnel label, source MAC and target MAC (Media Access Control) address.
Further, this package module by from PSN network reception to Ethernet message peel off tunnel label, source MAC and target MAC (Media Access Control) address, and be sent to ONU after encapsulating outside VLAN label according to tunnel label in large network packet.Further, Ethernet message can be sent to ONU after encapsulate inner layer VLAN label by this package module in Ethernet message.
Fig. 4 is the structural representation of the ONU according to first embodiment of the invention.This ONU comprises: CES module and Switching Module.
Wherein, this CES module uses the internal layer pseudo line tag from OLT to carry out MPLS encapsulation, the MPLS encapsulation of such as PWE3 mode, by TDM (the Time Division Multiplexing from base station, time division multiplexing)/ATM (Asynchronous Transfer Mode, asynchronous transfer mode) data encapsulation is Ethernet message.This Ethernet message can carry the VLAN label as inner VLAN label, identifies pseudo-line for OLT.
Ethernet message after encapsulation to Ethernet message encapsulation outside VLAN label, and is sent to OLT by this Switching Module.This outside VLAN label is as the tunnel label for identifying ONU.
Further, this Switching Module is by peeling outer layer VLAN label in the Ethernet message that receives from OLT.The Ethernet message of peeling outer layer VLAN label is peeled off internal layer pseudo line tag by this CES module, and is encapsulated as TDM/ATM data and is sent to base station.When Ethernet message carries inner VLAN label, CES module peels off inner VLAN label at stripping internal layer pseudo line tag simultaneously.
At network side, PE2 has the functional configuration identical with the OLT as PE equipment, and CES-CE also has identical functional configuration with the ONU as circuit emulation service equipment.By above configuration, the function of the two may be incorporated in same equipment, as shown in Figure 2.
Fig. 5 is the flow chart of the realization method of circuit emulation service end to end according to first embodiment of the invention.The method of the realization of first embodiment of the invention upstream circuitry artificial service end to end comprises the following steps:
Step 501, OLT, PE2 and outlet provider edge consult internal layer pseudo line tag, consult tunnel label with provider router.
Step 502, internal layer pseudo line tag is sent to ONU by OLT, and internal layer pseudo line tag is sent to CES-CE by PE2.Such as, internal layer pseudo line tag can be sent to ONU, CES-CE by OAM (operate/manage/maintenance) message of expansion by OLT, PE2 respectively.
Step 503, ONU uses internal layer pseudo line tag to carry out MPLS encapsulation, and the TDM/ATM data encapsulation from base station is Ethernet message by the MPLS encapsulation of such as PWE3 mode.This Ethernet message can carry the VLAN label as inner VLAN label.
Step 504, the Ethernet message after encapsulation to this Ethernet message encapsulation outside VLAN label, and is sent to OLT by ONU.Wherein, this outside VLAN label is as the tunnel label for identifying ONU.
Step 505, OLT, according to outside VLAN label, with MPLS encapsulation format to this Ethernet message encapsulation tunnel label, source MAC and target MAC (Media Access Control) address, and is sent to PSN network.
In step 505, OLT can peel off VLAN label (at least outside VLAN label in Ethernet message, when carrying inner VLAN label, may further include inner VLAN label) after, again with MPLS encapsulation format to this Ethernet message encapsulation tunnel label, source MAC and target MAC (Media Access Control) address, and be sent to PSN network.
Step 506, the Ethernet message received from PSN network is peeled off tunnel label by PE2, and source MAC and target MAC (Media Access Control) address, this Ethernet message being packaged into target MAC (Media Access Control) address is be transparent to CES-CE after the Ethernet message of the MAC Address of ONU.In step 506, PE2 can after packaging V LAN label (at least outside VLAN label, when needs carry inner VLAN label, can comprise inner VLAN label), then by Ethernet message transmission to CES-CE.
Step 507, CES-CE peels off the outside VLAN label of Ethernet message.
Step 508, CES-CE peels off the internal layer pseudo line tag of Ethernet message, Ethernet message is encapsulated as TDM/ATM data, is sent to RNC.When carrying inner VLAN label, CES-CE peels off internal layer pseudo line tag and inner VLAN label, Ethernet message is encapsulated as TDM/ATM data, is sent to RNC.
Fig. 6 is the flow chart of the realization method of downstream circuitry artificial service end to end according to first embodiment of the invention.The method of the realization of first embodiment of the invention downstream circuitry artificial service end to end comprises the following steps:
Step 601, OLT, PE2 and outlet provider edge consult internal layer pseudo line tag, consult tunnel label with provider router.
Step 602, internal layer pseudo line tag is sent to ONU by OLT, and internal layer pseudo line tag is sent to CES-CE by PE2.Such as, internal layer pseudo line tag can be sent to ONU, CES-CE by OAM (operate/manage/maintenance) message of expansion by OLT, PE2 respectively.
Step 603, CES-CE uses internal layer pseudo line tag to carry out MPLS encapsulation, and the TDM/ATM data encapsulation from base station is Ethernet message by the MPLS encapsulation of such as PWE3 mode.This Ethernet message can carry the VLAN label as inner VLAN label.
Step 604, the Ethernet message after encapsulation to this Ethernet message encapsulation outside VLAN label, and is sent to PE2 by CES-CE.Wherein, this outside VLAN label is as the tunnel label for identifying ONU.
Step 605, PE2, according to outside VLAN label, with MPLS encapsulation format to this Ethernet message encapsulation tunnel label, source MAC and target MAC (Media Access Control) address, and is sent to PSN network.
In step 605, PE2 can peel off VLAN label (at least outside VLAN label in Ethernet message, when carrying inner VLAN label, may further include inner VLAN label) after, again with MPLS encapsulation format to this Ethernet message encapsulation tunnel label, source MAC and target MAC (Media Access Control) address, and be sent to PSN network.
Step 606, OLT by from PSN network reception to Ethernet message peel off tunnel label, source MAC and target MAC (Media Access Control) address, this Ethernet message being packaged into target MAC (Media Access Control) address is be transparent to ONU after the Ethernet message of the MAC Address of ONU.In step 606, OLT can after packaging V LAN label (at least outside VLAN label, when needs carry inner VLAN label, can comprise inner VLAN label), then by Ethernet message transmission to ONU.
Step 607, ONU peels off the outside VLAN label of Ethernet message.
Step 608, ONU peels off the internal layer pseudo line tag of Ethernet message, Ethernet message is encapsulated as TDM/ATM data, is sent to base station.When carrying inner VLAN label, ONU peels off internal layer pseudo line tag and inner VLAN label, Ethernet message is encapsulated as TDM/ATM data, is sent to base station.
second embodiment
Structure according to the OLT of second embodiment of the invention is similar to the first embodiment, also comprises negotiation module and package module, and difference is that the function of each module of OLT is slightly different.
Wherein, this negotiation module is used for such as by LDP agreement, consult internal layer pseudo line tag with outlet provider edge, consult tunnel label with provider router, and internal layer pseudo line tag, tunnel label, source MAC and target MAC (Media Access Control) address are sent to ONU.Internal layer pseudo line tag, tunnel label, source MAC and target MAC (Media Access Control) address such as can be sent to ONU by OAM (operate/manage/maintenance) message of expansion by this negotiation module.
This package module sends the ONU of this Ethernet message according to the outside VLAN tag recognition received from ONU in Ethernet message, and this Ethernet message is sent to PSN network.
This Ethernet message after peeling off the VLAN label (at least outside VLAN label, when carrying inner VLAN label, may further include inner VLAN label) in Ethernet message, then can be sent to PSN network by this package module.
Wherein, this package module by from PSN network reception to Ethernet message peel off tunnel label, source MAC and target MAC (Media Access Control) address, and will in Ethernet message packaging V LAN label (at least outside VLAN label, when needs carry inner VLAN label, inner VLAN label can be comprised) after be transparent to ONU.
Structure according to the ONU of second embodiment of the invention is similar to the first embodiment, also comprises CES module and Switching Module, and difference is that the function of each module of ONU is slightly different.
Wherein, this CES module uses carries out MPLS encapsulation from OLT internal layer pseudo line tag, tunnel label, source MAC and target MAC (Media Access Control) address, and the TDM/ATM data encapsulation from base station is Ethernet message by the MPLS encapsulation of such as PWE3 mode.In addition, this Ethernet message can carry the VLAN label as inner VLAN label, identifies pseudo-line for OLT.
This Switching Module to Ethernet message encapsulation outside VLAN label, and will send to OLT with large network packet after encapsulation.This outside VLAN label is as the tunnel label for identifying ONU.
Further, wherein, this package module is peeling outer layer VLAN label and internal layer pseudo line tag from the Ethernet message that OLT receives, and is sent to base station after Ethernet message is encapsulated as TDM/ATM data.When Ethernet message carries inner VLAN label, ONU peels off inner VLAN label at peeling outer layer VLAN label and internal layer pseudo line tag simultaneously further.
Fig. 7 is the flow chart of the realization method of upstream circuitry artificial service end to end according to second embodiment of the invention.
Step 701, OLT, PE2 and outlet provider edge consult internal layer pseudo line tag, consult tunnel label (that is, MPLS label) with provider router.
Step 702, internal layer pseudo line tag, tunnel label, source MAC and target MAC (Media Access Control) address are sent to ONU, CES-CE by OLT, PE2 respectively.Such as, internal layer pseudo line tag, tunnel label, source MAC and target MAC (Media Access Control) address can be sent to ONU, CES-CE by OAM (operate/manage/maintenance) message of expansion by OLT, PE2.
Step 703, ONU uses internal layer pseudo line tag, tunnel label, source MAC and target MAC (Media Access Control) address to carry out MPLS encapsulation, and the TDM/ATM data encapsulation from base station is Ethernet message by the MPLS encapsulation of such as PWE3 mode.In addition, this Ethernet message can carry the VLAN label as inner VLAN label, identifies pseudo-line for OLT.
Step 704, the Ethernet message after encapsulation to this Ethernet message encapsulation outside VLAN label, and is sent to OLT by ONU.Wherein, this outside VLAN label is as the tunnel label for identifying ONU.
Step 705, OLT sends the ONU of this Ethernet message according to outside VLAN tag recognition, then this Ethernet message is sent to PSN network.In step 705, OLT can peel off VLAN label (at least outside VLAN label in Ethernet message, when carrying inner VLAN label, may further include inner VLAN label) after, then this Ethernet message is sent to PSN network.
Step 706, PE2 by from PSN network reception to Ethernet message transmission to CES-CE.In step 706, PE2 can after packaging V LAN label (at least outside VLAN label, when needs carry inner VLAN label, can comprise inner VLAN label), then by Ethernet message transmission to CES-CE.
Step 707, CES-CE peels off the outside VLAN label of Ethernet message.
Step 708, CES-CE peels off the internal layer pseudo line tag of Ethernet message, source MAC and target MAC (Media Access Control) address, Ethernet message is encapsulated as TDM/ATM data, is sent to RNC.When carrying inner VLAN label, CES-CE peels off internal layer pseudo line tag and inner VLAN label, then Ethernet message is encapsulated as TDM/ATM data, is sent to RNC.
Fig. 8 is the flow chart of the realization method of downstream circuitry artificial service end to end according to second embodiment of the invention.The method of the realization of second embodiment of the invention downstream circuitry artificial service end to end comprises the following steps:
Step 801, OLT, PE2 and outlet provider edge consult internal layer pseudo line tag, consult tunnel label (that is, MPLS label) with provider router.
Step 802, internal layer pseudo line tag, tunnel label, source MAC and target MAC (Media Access Control) address are sent to ONU, CES-CE by OLT, PE2 respectively.Such as, internal layer pseudo line tag, tunnel label, source MAC and target MAC (Media Access Control) address can be sent to ONU, CES-CE by OAM (operate/manage/maintenance) message of expansion by OLT, PE2.
Step 803, CES-CE uses internal layer pseudo line tag, tunnel label, source MAC and target MAC (Media Access Control) address to carry out MPLS encapsulation, and the TDM/ATM data encapsulation from RNC is Ethernet message by the MPLS encapsulation of such as PWE3 mode.In addition, this Ethernet message can carry the VLAN label as inner VLAN label, identifies pseudo-line for PE2.
Step 804, the Ethernet message after encapsulation to this Ethernet message encapsulation outside VLAN label, and is sent to PE2 by CES-CE.Wherein, this outside VLAN label is as the tunnel label for identifying CES-CE.
Step 805, PE2 sends the CES-CE of this Ethernet message according to outside VLAN tag recognition, then this Ethernet message is sent to PSN network.In step 805, PE2 can peel off VLAN label (at least outside VLAN label in Ethernet message, when carrying inner VLAN label, may further include inner VLAN label) after, then this Ethernet message is sent to PSN network.
Step 806, OLT by from PSN network reception to Ethernet message transmission to ONU.In step 806, OLT can after packaging V LAN label (at least outside VLAN label, when needs carry inner VLAN label, can comprise inner VLAN label), then by Ethernet message transmission to ONU.
Step 807, ONU peels off the outside VLAN label of Ethernet message.
Step 808, ONU peels off the internal layer pseudo line tag of Ethernet message, source MAC and target MAC (Media Access Control) address, Ethernet message is encapsulated as TDM/ATM data, is sent to base station.When carrying inner VLAN label, ONU peels off internal layer pseudo line tag and inner VLAN label, then Ethernet message is encapsulated as TDM/ATM data, is sent to base station.
According to the present invention, MPLS ability can be realized on the circuit emulation service equipment (ONU, CES-CE) not supporting LDP agreement, support dynamic labels distribution mechanisms, support LDP distribution mechanisms, thus, in a limited number of situation of LDP protocol end, expand MPLS ability to edge, that is, the end to end circuit artificial service from base station to RNC is realized.Further, the grouping conveying network equipment (PE2) of RNC side and circuit emulation service equipment (CES-CE) can be realized in same equipment, to reduce cost and fault origination point.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. a grouping conveying network equipment, is characterized in that, is arranged in same equipment, comprises with circuit emulation service equipment:
Negotiation module, for consulting internal layer pseudo line tag and tunnel label, and sends to circuit emulation service equipment by the OAM message of expansion by internal layer pseudo line tag; And
Package module, for basis from the outside VLAN label the Ethernet message that circuit emulation service equipment receives, network is sent to after Ethernet message encapsulation tunnel label, source MAC and target MAC (Media Access Control) address with MPLS encapsulation format, and, by from network reception to Ethernet message peel off tunnel label, source MAC and target MAC (Media Access Control) address, and be sent to circuit emulation service equipment after encapsulating outside VLAN label according to tunnel label in Ethernet message;
Wherein, the inner VLAN label for identifying internal layer pseudo line tag is carried in described Ethernet message.
2. grouping conveying network equipment as claimed in claim 1, it is characterized in that, package module, after peeling off the VLAN label in Ethernet message, is sent to network with MPLS encapsulation format to after Ethernet message encapsulation tunnel label, source MAC and target MAC (Media Access Control) address according to outside VLAN label.
3. a circuit emulation service equipment, is characterized in that, is arranged in same equipment with grouping conveying network equipment, comprises circuit emulation service module and Switching Module, wherein:
Circuit emulation service module, for carrying out MPLS encapsulation according to the internal layer pseudo line tag from grouping conveying network equipment, be send to Switching Module after Ethernet message by TDM/ATM data encapsulation, and be encapsulated as TDM/ATM data after the Ethernet message of self-exchange module peels off internal layer pseudo line tag in the future; And
Switching Module is used for being sent to grouping conveying network equipment after from the Ethernet message encapsulation outside VLAN label of circuit emulation service module, and is sent to circuit emulation service module by after the Ethernet message peeling outer layer VLAN label received from grouping conveying network equipment;
Wherein, the inner VLAN label for identifying internal layer pseudo line tag is carried in described Ethernet message.
4. circuit emulation service equipment as claimed in claim 3, it is characterized in that, when the Ethernet message received from Switching Module carries inner VLAN label, circuit emulation service module peels off inner VLAN label further.
5. a grouping conveying network equipment, is characterized in that, is arranged in same equipment, comprises with circuit emulation service equipment:
Negotiation module, for consulting internal layer pseudo line tag and tunnel label, and sends to circuit emulation service equipment by the OAM message of expansion by internal layer pseudo line tag, tunnel label, source MAC and target MAC (Media Access Control) address; And
Package module, for the Ethernet received from circuit emulation service equipment message is sent to PSN network, and, the Ethernet message received from network side is sent to circuit emulation service equipment;
Wherein, the inner VLAN label for identifying internal layer pseudo line tag is carried in described Ethernet message.
6. grouping conveying network equipment as claimed in claim 5, is characterized in that, Ethernet message, after peeling off the VLAN label in Ethernet message, is sent to network by package module.
7. a circuit emulation service equipment, is characterized in that, is arranged in same equipment with grouping conveying network equipment, comprises circuit emulation service module and Switching Module, wherein:
Circuit emulation service module, for carrying out MPLS encapsulation according to from the internal layer pseudo line tag of grouping conveying network equipment, tunnel label, source MAC and target MAC (Media Access Control) address, be send to Switching Module after Ethernet message by TDM/ATM data encapsulation, and the network packet in addition of self-exchange module is encapsulated as TDM/ATM data after peeling off internal layer pseudo line tag, tunnel label, source MAC and target MAC (Media Access Control) address in the future; And
Switching Module, for being sent to grouping conveying network equipment by from after the Ethernet message encapsulation outside VLAN label of circuit emulation service module, and be sent to circuit emulation service module by after the Ethernet message peeling outer layer VLAN label received from grouping conveying network equipment;
Wherein, the inner VLAN label for identifying internal layer pseudo line tag is carried in described Ethernet message.
8. circuit emulation service equipment as claimed in claim 7, it is characterized in that, when the Ethernet message received from Switching Module carries inner VLAN label, circuit emulation service module peels off inner VLAN label further.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910168989.6A CN102014041B (en) | 2009-09-04 | 2009-09-04 | PTN (Packet Transport Network) equipment and CES (Circuit Emulation Service) equipment |
| PCT/CN2010/076344 WO2011026402A1 (en) | 2009-09-04 | 2010-08-25 | Packet transport network device and circuit emulation service device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910168989.6A CN102014041B (en) | 2009-09-04 | 2009-09-04 | PTN (Packet Transport Network) equipment and CES (Circuit Emulation Service) equipment |
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| CN102014041A CN102014041A (en) | 2011-04-13 |
| CN102014041B true CN102014041B (en) | 2015-01-28 |
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| CN200910168989.6A Active CN102014041B (en) | 2009-09-04 | 2009-09-04 | PTN (Packet Transport Network) equipment and CES (Circuit Emulation Service) equipment |
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| WO (1) | WO2011026402A1 (en) |
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| WO2012167655A1 (en) * | 2011-06-09 | 2012-12-13 | 中兴通讯股份有限公司 | Packet transmit network device and method for asynchronous transfer mode switching |
| CN102833084A (en) * | 2011-06-15 | 2012-12-19 | 中兴通讯股份有限公司 | Method and system for realizing circuit emulation service in passive optical network |
| CN103368834B (en) * | 2012-03-28 | 2017-11-14 | 中兴通讯股份有限公司 | A kind of transmission method and system of packet-based simulation technology |
| US10148459B2 (en) | 2014-04-29 | 2018-12-04 | Hewlett Packard Enterprise Development Lp | Network service insertion |
| CN105704083A (en) * | 2014-11-24 | 2016-06-22 | 中兴通讯股份有限公司 | Generation method, generation device and simulation system of Ethernet excitation message |
| CN106330499A (en) * | 2015-06-25 | 2017-01-11 | 中兴通讯股份有限公司 | Time division multiplexing data transmission method and device, as well as network-side edge devices |
| CN107800583B (en) * | 2016-09-06 | 2023-05-23 | 中兴通讯股份有限公司 | Message transmission method and device |
| CN111106963B (en) * | 2019-12-25 | 2022-10-28 | 瑞斯康达科技发展股份有限公司 | Method for realizing circuit simulation service and distributed system |
| CN111885433B (en) * | 2020-05-27 | 2023-04-18 | 浙江双成电气有限公司 | Network system, method and equipment capable of realizing end-to-end monitoring |
| CN114339494B (en) * | 2022-01-05 | 2023-05-26 | 烽火通信科技股份有限公司 | Method and device for accessing Vlan aggregation service into MPLS in PON |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1832443A (en) * | 2005-03-08 | 2006-09-13 | 杭州华为三康技术有限公司 | Method for reducing VPN network arranging |
| CN1972247A (en) * | 2005-09-26 | 2007-05-30 | 阿尔卡特公司 | Interworking, circuit emulation service over packet and ip/mpls packet processing |
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| US20080304476A1 (en) * | 2007-06-08 | 2008-12-11 | Alcatel Lucent | Ethernet over mpls circuit emulation service |
| CN101714937B (en) * | 2009-11-16 | 2013-08-07 | 中兴通讯股份有限公司 | Device and method for end-to-end pseudowire emulation access |
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| CN1832443A (en) * | 2005-03-08 | 2006-09-13 | 杭州华为三康技术有限公司 | Method for reducing VPN network arranging |
| CN1972247A (en) * | 2005-09-26 | 2007-05-30 | 阿尔卡特公司 | Interworking, circuit emulation service over packet and ip/mpls packet processing |
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| CN102014041A (en) | 2011-04-13 |
| WO2011026402A1 (en) | 2011-03-10 |
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